Data leaks can expose passwords, personal records, and business secrets, enabling identity theft, fraud, extortion, and follow-on cyberattacks.
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Background for this topic.
Leak is the unauthorized disclosure or exposure of information to people or systems not meant to receive it. It may be deliberate or accidental and can involve personal data, credentials, API keys, source code, trade secrets, or internal documents. A leak can result from theft and publication, an employee sending data to the wrong recipient, or an exposed cloud storage bucket, database, log, repository, or backup. The term describes the exposure, not necessarily how attackers obtained it; reporting may refer to both confirmed disclosure and suspected exposure.
Security teams should establish what data was accessible, to whom, and for how long, while distinguishing evidence of access from mere exposure. Exposed passwords, tokens, and keys should be revoked or rotated quickly, and affected systems checked for reuse or further access. Personal or regulated data may trigger privacy and reporting obligations, while leaked proprietary material can require legal and threat-intelligence monitoring. Prevention includes least-privilege access, secret scanning, safe sharing controls, encryption where appropriate, and monitoring for misconfigured public resources.
A researcher has released detailed evidence showing some Instagram private accounts exposed photo links to unauthenticated visitors. The issue was later fixed, but Meta closed the report as not applicable and did not respond to multiple requests for comment. [...]
A researcher has released detailed evidence showing some Instagram private accounts exposed photo links to unauthenticated visitors. The issue was later fixed, but Meta closed the report as not applicable and did not respond to multiple requests for comment. [...]
Ransomware victims surged in Q4 2025 despite fewer active extortion groups, with data leaks rising 50%, ReliaQuest researchers report
Security researchers are warning of insecure deployments in enterprise environments of the Moltbot (formerly Clawdbot) AI assistant, which can lead to leaking API keys, OAuth tokens, conversation history, and credentials. [...]
The region is up against tactics like data-leak extortion, credential-stealing campaigns, edge-device exploitation, and attackers leveraging AI.
Nike is investigating what it described as a "potential cyber security incident" after the World Leaks ransomware gang leaked 1.4 TB of files allegedly stolen from the sportswear giant. [...]
Nike is investigating after the World Leaks ransomware group posted a 1.4TB data dump
Booz Allen Loses Treasury Work in Move Tied to Trump Waste CrackdownThe U.S. Department of Treasury said it canceled all active contracts with Booz Allen Hamilton, citing data protection failures in handling taxpayer information. Treasury cited a criminal case against Charles Littlejohn, a former employee who leaked the tax returns of President Donald Trump.
Cloudflare has shared more details about a recent 25-minute Border Gateway Protocol (BGP) route leak affecting IPv6 traffic, which caused measurable congestion, packet loss, and approximately 12 Gbps of dropped traffic. [...]
US sports brand launches probe after extortion crew WorldLeaks claims it stole huge dataset Nike says it is probing a possible breach after extortion crew WorldLeaks claimed to have lifted 1.4TB of internal data from the sportswear giant and posted samples on its leak site.…